Telemarketers

I have a Virgin Mobile Kyocera and the past couple of days I have been getting calls from telemarketers. I get about 5-6 calls a day and when they call it only rings once or twice not long enough to answer it. When I try to call the numbers back it says that There is no operator avaliable and to leave my number for them to call back.

So, is there a way to block numbers from my phone so they can't call me anymore?

there isn't a way to block numbers from the handset, you'd have to call in or go to virgins site and log in to see how that works ... last time i checked you have to pay to be able to block numbers, some kind of security bundle dealy ...